{- $setup
>>> :set -XFlexibleContexts
>>> :set -XScopedTypeVariables
>>> import Data.Char (toUpper)
>>> import Data.Function ((&))
>>> import qualified Streamly.Console.Stdio as Stdio
>>> import qualified Streamly.Data.Array as Array
>>> import qualified Streamly.Data.Fold as Fold
>>> import qualified Streamly.Data.Stream.Prelude as Stream
>>> import qualified Streamly.System.Process as Process
>>> import qualified Streamly.Unicode.Stream as Unicode
For APIs that have not been released yet.
>>> import qualified Streamly.Internal.Console.Stdio as Stdio (putChars, putChunks)
>>> import qualified Streamly.Internal.FileSystem.Dir as Dir (readFiles)
>>> import qualified Streamly.Internal.System.Process as Process
>>> import qualified Streamly.Internal.Unicode.Stream as Unicode (lines)
-}